|Pos|Team|Played|Won|Draw|Lost|Goals For|Goals Against|Goal Difference|Points|Notes|
|---|---|---|---|---|---|---|---|---|---|---|
|1|FH|18|14|2|2|47|20|+27|44|Promoted to 1989 Úrvalsdeild|
|2|Fylkir|18|9|6|3|39|30|+9|33|Promoted to 1989 Úrvalsdeild|
|3|Víðir|18|8|3|7|38|31|+7|27||
|4|ÍR|18|8|2|8|31|35|-4|26||
|5|Selfoss|18|7|4|7|27|26|+1|25||
|6|Tindastóll|18|7|2|9|27|31|-4|23||
|7|Breiðablik|18|6|5|7|27|33|-6|23||
|8|ÍBV|18|6|2|10|29|36|-7|20||
|9|KS|18|5|4|9|38|46|-8|19|Relegated to 1989 2. deild|
|10|Þróttur R.|18|2|6|10|27|42|-15|12|Relegated to 1989 2. deild|

Question: the greatest number of wins is how far above the greatest number of losses?
Answer: 4